DIATONIC HARMONIC MS Series Diatonic Harmonica. The chrome body improves airflow, increases volume, and facilitates high-speed playback by reducing response time. The open covers ensure optimal sound projection and give a bright and powerful tone. Jean-Jacques Milteau, born April 17, 1950 in Paris, is a French musician, singer and composer specialized in Blues harmonica. Milteau became interested in the harmonica when he first heard folk and rock music (such as Bob Dylan or The Rolling Stones) in the 1960s. He has collaborated with French singers such as Yves Montand, Eddy Mitchell, Jean-Jacques Goldman, Maxime Le Forestier , Barbara and Charles Aznavour in various styles, from Blues to Jazz. With a first solo album published in 1989,